body {
    margin: 0;
    font-family: "Microsoft YaHei", sans-serif;
}
.container {
    display: flex;
    height: 100vh;
}
.sidebar {
    width: 200px;
    background-color: #333;
    color: #fff;
    padding: 20px 0;
}
.sidebar-item {
    padding: 10px 20px;
    cursor: pointer;
    transition: background-color 0.3s;
}
.sidebar-item:hover {
    background-color: #555;
}
.content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}
.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}
.stat-card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.stat-card i {
    font-size: 2.5rem;
    margin-bottom: 15px;
    display: block;
}

.stat-card .value {
    font-size: 2rem;
    font-weight: bold;
    margin: 10px 0;
    color: #2563eb;
}

.stat-card .label {
    color: #666;
    font-size: 0.9rem;
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
}

.action-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.action-btn i {
    font-size: 2rem;
    margin-bottom: 10px;
    color: #2563eb;
}

.recent-orders {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

.order-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
}

.order-item:last-child {
    border-bottom: none;
}

.order-status {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.status-completed {
    background-color: #e6f7e6;
    color: #28a745;
}

.status-pending {
    background-color: #fff3cd;
    color: #856404;
}

.status-cancelled {
    background-color: #f8d7da;
    color: #721c24;
}

.section-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #2563eb;
    color: #333;
}

.welcome-banner {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: white;
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 30px;
}

@media (max-width: 768px) {
    .dashboard {
        grid-template-columns: 1fr;
    }

    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
}